mirror of
https://github.com/Ed94/pikuma_ps1.git
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906 lines
44 KiB
Lua
906 lines
44 KiB
Lua
--- duffle.lua — Shared primitives + domain tables for the tape-atom
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--- metaprograms.
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---
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--- This module is the source for:
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--- - **Character classification** (`is_space`, `is_alpha`, `is_alnum`, `is_digit`, plus the byte-fast `_byte` variants).
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--- - **String primitives** (`trim`, `dirname`, `basename_no_ext`, `find_byte`).
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--- - **I/O primitives** (`read_file`, `write_file`, `ensure_dir`).
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--- - **C-language scanner** (`skip_ws_and_cmt`, `skip_str_or_cmt`, `read_ident`, `read_parens`, `read_braces`, `read_brackets`, `read_balanced`, `scan_to_char`, `split_top_level_commas`).
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--- - **Word-count loader** (`load_word_counts` for `WORD_COUNT(...)` metadata files).
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--- - **Line lookup** (`LineIndex` returns an O(log N) `line_of(pos)` closure for source-mapping).
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--- - **Domain tables** (`WAVE_CONTEXT_REGS`, `TAPE_ATOM_MACROS`, `GTE_PIPELINE_LATENCY`, `GP0_CMD_SIZE`, `GP0_CMD_BY_SHAPE`, `GP0_MACRO_CONTRIB`, `INSTRUCTION_LATENCY`).
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--- - **Process-bootstrap helper** (`setup_package_path`replaces the 8-line `arg[0]`-resolution boilerplate duplicated across 7 entry scripts)
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---
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--- **Conventions**: tabs (1/level), EmmyLua annotations, no regex.
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--- Lua 5.3 compatible; no `<close>`/`<toclose>`, no `continue`, no
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--- 5.4 string.dump improvements. LuaJIT 5.1+extensions model is the primary target.
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---
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--- **No `:match` / `:gmatch` regex use anywhere**;
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--- all delimiter-splitting is hand-rolled or via LPeg (the regex-free PEG library).
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local M = {}
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-- ════════════════════════════════════════════════════════════════════════════
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-- Cross-file type aliases
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-- ════════════════════════════════════════════════════════════════════════════
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--- @alias Path string -- absolute or CWD-relative file path
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--- @alias LineNum integer -- 1-indexed source line number
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--- @alias ByteOff integer -- 0-indexed byte offset within a source string
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--- @alias MacroName string -- lower_snake_case macro identifier (e.g. "mac_yield")
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--- @alias AtomName string -- lower_snake_case atom name (e.g. "cube_g4_face")
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--- @alias Severity string -- "error" | "warning" | "info"
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--- @class SourceFile
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--- @field path Path -- absolute path to the source file
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--- @field text string -- the full source text
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--- @field dir string -- the directory containing the source
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--- @field basename string -- filename without extension
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-- ════════════════════════════════════════════════════════════════════════════
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-- ASCII byte constants
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-- ════════════════════════════════════════════════════════════════════════════
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local BYTE_SPACE = 32 -- ' '
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local BYTE_TAB = 9 -- '\t'
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local BYTE_NEWLINE = 10 -- '\n'
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local BYTE_CR = 13 -- '\r'
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local BYTE_VT = 11 -- '\v'
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local BYTE_FF = 12 -- '\f'
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local BYTE_UNDERSCORE = 95 -- '_'
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local BYTE_DOT = 46 -- '.'
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local BYTE_SLASH = 47 -- '/'
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local BYTE_BACKSLASH = 92 -- '\\'
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local BYTE_STAR = 42 -- '*'
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local BYTE_DQUOTE = 34 -- '"'
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local BYTE_SQUOTE = 39 -- '\''
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local BYTE_COMMA = 44 -- ','
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local BYTE_SEMI = 59 -- ';'
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local BYTE_OPEN_PAREN = 40 -- '('
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local BYTE_OPEN_BRACE = 123 -- '{'
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local BYTE_OPEN_BRACK = 91 -- '['
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local BYTE_LOWER_A = 97 -- 'a'
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local BYTE_LOWER_Z = 122 -- 'z'
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local BYTE_UPPER_A = 65 -- 'A'
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local BYTE_UPPER_Z = 90 -- 'Z'
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local BYTE_DIGIT_0 = 48 -- '0'
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local BYTE_DIGIT_9 = 57 -- '9'
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-- ════════════════════════════════════════════════════════════════════════════
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-- Section -1: Bootstrap (path-setup at module load)
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-- ════════════════════════════════════════════════════════════════════════════
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--
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-- When duffle.lua is first loaded (via `dofile` from an entry script or via `require` from a passes script),
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-- the code below sruns and sets `package.path` + `package.cpath` so subsequent `require`s resolve.
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-- Idempotent: re-loads just re-set the same paths.
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--
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-- **Entry scripts** trigger this with one line:
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-- `local duffle = dofile(arg[0]:match("(.*[/\\])") .. "/../duffle.lua")` which runs this top-level + returns `M`.
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--
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-- **Passes scripts** are loaded via `require("passes.X")` from the entry script; by the time they run,
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-- the entry script has already triggered this bootstrap, so the paths are set.
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--- Resolve the repo root via `git rev-parse --show-toplevel` (cached).
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--- Returns a path with a trailing separator, or nil if not in a git repo.
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--- @return string|nil
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local function find_repo_root()
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-- Cached in `package.loaded` (process-global) so all 8 entry scripts + passes scripts share one git call.
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-- Without this, git rev-parse runs once per script load.
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if package.loaded.__duffle_repo_root__ then return package.loaded.__duffle_repo_root__ end
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local p = io.popen("git rev-parse --show-toplevel 2>nul")
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local root
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if p then
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root = p:read("*l")
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p:close()
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end
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if not root or root == "" then return nil end
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if not root:match("[/\\]$") then root = root .. "/" end
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package.loaded.__duffle_repo_root__ = root
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return root
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end
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--- Set `package.path` (for `require("duffle")` + `require("passes.X")`)
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--- and `package.cpath` (for `lpeg.dll` on Windows).
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function M.setup_package_path()
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local repo_root = find_repo_root()
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if not repo_root then
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io.stderr:write("[duffle] git rev-parse failed -- not in a git repo?\n")
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os.exit(2)
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end
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-- From the repo root, derive both `scripts/` and `scripts/passes/` so `require("duffle")` AND `require("passes.annotation")` resolve.
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local scripts_dir = repo_root .. "scripts/"
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local passes_dir = repo_root .. "scripts/passes/"
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package.path = scripts_dir .. "?.lua;"
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.. scripts_dir .. "?/init.lua;"
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.. passes_dir .. "?.lua;"
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.. passes_dir .. "?/init.lua;"
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.. package.path
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-- cpath: only needed on Windows for the bundled lpeg.dll.
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-- (LPeg is optional -- duffle.lua's `pcall(require, "lpeg")` falls back to hand-rolled scanners if the .dll isn't loadable.)
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if package.config:sub(1, 1) == "\\" then
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package.cpath = repo_root .. "toolchain/luajit-2.1/lib/lua/5.1/?.dll;"
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.. package.cpath
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end
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end
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-- NOTE: `M.setup_package_path()` is NOT auto-called here. The entry scripts explicitly `dofile("duffle_paths.lua")` first, which calls `M.setup_package_path()`.
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-- The function exists for the helper to use (so the path-setup logic is centralized in duffle.lua).
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-- ════════════════════════════════════════════════════════════════════════════
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-- Section 0: LPeg patterns (compiled once at module load)
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-- ════════════════════════════════════════════════════════════════════════════
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--
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-- LPeg is a required dependency (PEG library, no regex).
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-- It's loaded via `package.cpath` (configured by `duffle_paths.lua` to find `toolchain/lpeg/lpeg.dll`).
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-- There's no hand-rolled fallback. The original two-tier design added complexity for a 5-10x speedup that's
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-- only relevant at the high-level scanner stage; the byte-by-byte helpers in Section 1 are sufficient for the classification primitives.
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--
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-- If the require fails, fail loud with an actionable message. The build script (`update_deps.ps1`) builds lpeg.dll into `toolchain/lpeg/`;
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-- if it's missing, run `update_deps.ps1`.
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local lpeg_ok, lpeg = pcall(require, "lpeg")
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if not lpeg_ok then
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io.stderr:write("[duffle] require('lpeg') failed: ", lpeg, "\n")
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io.stderr:write("[duffle] lpeg.dll not found on package.cpath.\n")
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io.stderr:write("[duffle] Run 'scripts/update_deps.ps1' to build it into toolchain/lpeg/.\n")
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os.exit(1)
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end
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local P, S, R = lpeg.P, lpeg.S, lpeg.R
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-- Character class patterns
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local alpha_pat = R("AZ", "az") + P("_")
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local digit_pat = R("09")
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local lpeg_alnum_pat = alpha_pat + digit_pat
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-- Identifier: alpha followed by zero+ alnum. Capture as a string.
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local lpeg_alpha_pat = alpha_pat
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local lpeg_ident_pat = lpeg.C(alpha_pat * lpeg_alnum_pat^0)
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-- String literal: "..." with backslash escapes.
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local lpeg_str_pat = P('"') * (P(1) - S('"\\') + P('\\') * P(1))^0 * P('"')
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-- Char literal: '...' with backslash escapes.
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local lpeg_chr_pat = P("'") * (P(1) - S("'\\") + P('\\') * P(1))^0 * P("'")
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-- Line comment: // ... to end-of-line.
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local lpeg_line_cmt_pat = P("//") * (P(1) - S("\n"))^0
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-- Block comment: /* ... */ (no nesting per C standard).
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local lpeg_block_cmt_pat = P("/*") * (P(1) - P("*/"))^0 * P("*/")
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-- String or comment (any of the four forms).
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local lpeg_str_or_cmt_pat = lpeg_str_pat + lpeg_chr_pat + lpeg_line_cmt_pat + lpeg_block_cmt_pat
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-- Whitespace + comment skipper: zero+ (whitespace run | string | comment).
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local ws_pat = S(" \t\n\r\v\f")
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local lpeg_ws_and_cmt_pat = (ws_pat + lpeg_str_or_cmt_pat)^0
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-- Generic "skip until target, but step over balanced groups" matcher.
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-- Used by scan_to_char for non-ident / non-bracket chars.
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-- We accept any single char except the target.
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-- The balanced-group stepping is handled by the caller (via read_balanced).
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local lpeg_scan_to_target_pat = function(target) return (P(1) - P(target))^0 end
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-- ════════════════════════════════════════════════════════════════════════════
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-- Section 1: character classification (byte-based for hot loops)
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-- ════════════════════════════════════════════════════════════════════════════
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--
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-- Two APIs:
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-- is_space(c), is_alpha(c), etc. — accept a single-char STRING (legacy)
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-- is_space_byte(b), is_alpha_byte(b), etc. — accept a single-byte INTEGER
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--
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-- The byte-based versions are 5-10x faster in tight loops because they avoid the string allocation per s:sub(pos, pos) call.
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-- Whitespace characters per C locale.
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function M.is_space_byte(b) return b == BYTE_SPACE or b == BYTE_TAB or b == BYTE_NEWLINE or b == BYTE_CR or b == BYTE_VT or b == BYTE_FF end
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-- Letters (a-z, A-Z) and underscore.
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function M.is_alpha_byte(b)
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if not b then return false end
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if b >= BYTE_LOWER_A and b <= BYTE_LOWER_Z then return true end -- 'a'..'z'
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if b >= BYTE_UPPER_A and b <= BYTE_UPPER_Z then return true end -- 'A'..'Z'
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return b == BYTE_UNDERSCORE
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end
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-- Single digit.
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function M.is_digit_byte(b) return b and b >= BYTE_DIGIT_0 and b <= BYTE_DIGIT_9 end
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-- Letter OR digit OR underscore.
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function M.is_alnum_byte(b) return M.is_alpha_byte(b) or M.is_digit_byte(b) end
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-- String-based wrappers (kept for callers that already have a single-char
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-- string; the byte versions are what the hot loops should call).
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function M.is_space(c)
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if type(c) == "number" then return M.is_space_byte(c) end
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return c == " " or c == "\t" or c == "\n" or c == "\r" or c == "\v" or c == "\f"
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end
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function M.is_alpha(c)
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if type(c) == "number" then return M.is_alpha_byte(c) end
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if not c or #c == 0 then return false end
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if c >= "a" and c <= "z" then return true end
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if c >= "A" and c <= "Z" then return true end
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return c == "_"
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end
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function M.is_digit(c)
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if type(c) == "number" then return M.is_digit_byte(c) end
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return c and c >= "0" and c <= "9"
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end
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function M.is_alnum(c) return M.is_alpha(c) or M.is_digit(c) end
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-- ════════════════════════════════════════════════════════════════════════════
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-- Section 2: string primitives
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-- ════════════════════════════════════════════════════════════════════════════
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-- Trim leading and trailing whitespace from a string.
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function M.trim(s)
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local a = 1; while a <= #s and M.is_space_byte(s:byte(a)) do a = a + 1 end
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local b = #s; while b >= a and M.is_space_byte(s:byte(b)) do b = b - 1 end
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return s:sub(a, b)
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end
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-- Linear-search for a single-byte target in a string.
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-- (Phase 3 retained this for places where LPeg is overkill.)
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-- @param haystack string
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-- @param target integer -- byte value
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-- @param start integer -- optional 1-indexed start (default 1)
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-- @return integer|nil
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function M.find_byte(haystack, target, start)
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for pos = start or 1, #haystack do
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if haystack:byte(pos) == target then return pos end
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end
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return nil
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end
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-- Returns the directory portion of a path.
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function M.dirname(path)
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local last_sep = 0
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for pos = 1, #path do
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local b = path:byte(pos)
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if b == BYTE_SLASH or b == BYTE_BACKSLASH then last_sep = pos end
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end
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if last_sep == 0 then return "." end
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return path:sub(1, last_sep - 1)
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end
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-- Returns the basename of a path, with the file extension stripped.
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function M.basename_no_ext(path)
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local last_sep = 0
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for pos = 1, #path do
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local b = path:byte(pos)
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if b == BYTE_SLASH or b == BYTE_BACKSLASH then last_sep = pos end
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end
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local a = last_sep + 1
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local last_dot = #path + 1
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for pos = #path, a, -1 do
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if path:byte(pos) == BYTE_DOT then last_dot = pos; break end
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end
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return path:sub(a, last_dot - 1)
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end
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-- ════════════════════════════════════════════════════════════════════════════
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-- Section 3: I/O primitives
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-- ════════════════════════════════════════════════════════════════════════════
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function M.read_file(path)
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local f = io.open(path, "r")
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if not f then error("Cannot open " .. path) end
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local content = f:read("*a"); f:close()
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return content
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end
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function M.write_file(path, content)
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local f = io.open(path, "w")
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if not f then error("Cannot write " .. path) end
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f:write(content); f:close()
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end
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-- Write content to disk in binary mode so LF line endings are preserved on Windows
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-- (text mode would convert LF -> CRLF, breaking byte-identical diffs against git-tracked gen/*.h files which are stored as LF).
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-- @param path string
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-- @param content string
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function M.write_file_lf(path, content)
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local f = io.open(path, "wb")
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if not f then error("Cannot write " .. path) end
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f:write(content); f:close()
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end
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-- Convert a (possibly relative) path to an absolute path, using CWD if needed.
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-- Normalizes forward slashes to backslashes on Windows.
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-- Used for byte-identical emit: the // Source: comment line uses the absolute path.
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-- @param path string
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-- @return string
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function M.to_absolute_path(path)
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if #path >= 2 and path:sub(2, 2) == ":" then
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-- Already absolute; normalize slashes for consistency.
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return (path:gsub("/", "\\"))
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end
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local p = io.popen("cd")
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if not p then return path end
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local cwd = p:read("*l")
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p:close()
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if not cwd then return path end
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cwd = cwd:gsub("/", "\\")
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local tail = (path:gsub("/", "\\"))
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return cwd .. "\\" .. tail
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end
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-- Cache of directories already verified to exist in this process.
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-- Each ensure_dir() call may otherwise spawn a `cmd.exe mkdir` (50-100ms per call on Windows) — calling it inside per-source loops added 1.5+
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-- seconds to the report pass. Cache makes ensure_dir idempotent within the process lifetime.
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-- (safe across passes; the dir state doesn't change).
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local _ensured_dirs = {}
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function M.ensure_dir(path)
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if _ensured_dirs[path] then return end
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_ensured_dirs[path] = true
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local is_win = package.config:sub(1, 1) == "\\"
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os.execute(is_win and ('if not exist "' .. path .. '" mkdir "' .. path .. '"') or ('mkdir -p "' .. path .. '" 2>/dev/null'))
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end
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-- Test helper: clear the cache (used by tests + between process runs).
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-- Not normally needed since Lua state is per-process.
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function M._reset_ensured_dirs() _ensured_dirs = {} end
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-- Group a list of `SourceFile`-shaped records by their `dir` field.
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-- Used by the annotation / static-analysis / report passes to partition sources into per-DIRECTORY (per-module) buckets
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-- before emitting per-module reports. Insertion order preserved within each bucket (matches source order in `ctx.sources`).
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-- @param sources table[] -- list of source records (each having a `dir` string field)
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-- @return table<string, table[]> -- map of `dir` -> sources in that dir
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function M.group_sources_by_dir(sources)
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local by_dir = {}
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for _, src in ipairs(sources) do
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by_dir[src.dir] = by_dir[src.dir] or {}
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table.insert(by_dir[src.dir], src)
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end
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return by_dir
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end
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-- ════════════════════════════════════════════════════════════════════════════
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-- Section 4: C-language scanner primitives
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-- ════════════════════════════════════════════════════════════════════════════
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-- Skip a string or C-style comment starting at position `pos`.
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-- Returns the position just past the construct, or `pos` unchanged if no string/comment starts there. LPeg-backed.
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function M.skip_str_or_cmt(s, pos) return lpeg.match(lpeg_str_or_cmt_pat, s, pos) or pos end
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-- Skip whitespace AND C-style comments starting at position `pos`.
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-- LPeg-backed; ~5-10x faster than a hand-rolled byte-by-byte walker.
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function M.skip_ws_and_cmt(s, pos) return lpeg.match(lpeg_ws_and_cmt_pat, s, pos) or pos end
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-- Read a C-style identifier (alpha followed by zero+ alnum) starting at position `pos`.
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-- Returns the identifier string + the position just past it, or nil + pos if no identifier starts here. LPeg-backed.
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function M.read_ident(s, pos)
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local result = lpeg.match(lpeg_ident_pat, s, pos)
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if result then return result, pos + #result end
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return nil, pos
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end
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-- Read a balanced-delimited group (parens, braces, or brackets) starting at position `pos`.
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-- Returns the inner content (between the delimiters) + the position
|
||
-- just past the closing delimiter, or nil + pos if `s[pos]` isn't `open_char`.
|
||
function M.read_balanced(s, open_char, close_char, pos)
|
||
local open_byte = open_char:byte()
|
||
if s:byte(pos) ~= open_byte then return nil, pos end
|
||
-- scan: <open_char>
|
||
pos = pos + 1
|
||
-- scan: <open_char> <inner...>
|
||
local len = #s
|
||
local depth = 1
|
||
local a = pos
|
||
while pos <= len and depth > 0 do
|
||
local c = s:byte(pos)
|
||
if c == open_byte then
|
||
depth = depth + 1
|
||
pos = pos + 1
|
||
-- scan: <open_char> <inner...> <open_char> (depth=depth)
|
||
elseif c == close_char:byte() then
|
||
depth = depth - 1
|
||
if depth == 0 then break end
|
||
pos = pos + 1
|
||
-- scan: <open_char> <inner...> <close_char> (depth=depth)
|
||
else
|
||
local nx = M.skip_str_or_cmt(s, pos)
|
||
if nx > pos then
|
||
-- scan: <open_char> <inner...> <str|cmt>
|
||
pos = nx
|
||
else
|
||
pos = pos + 1
|
||
end
|
||
end
|
||
end
|
||
-- scan: <open_char> <inner> <close_char>
|
||
return s:sub(a, pos - 1), pos + 1
|
||
end
|
||
|
||
-- Convenience specializations of read_balanced.
|
||
M.read_parens = function(s, pos) return M.read_balanced(s, "(", ")", pos) end
|
||
M.read_braces = function(s, pos) return M.read_balanced(s, "{", "}", pos) end
|
||
M.read_brackets = function(s, pos) return M.read_balanced(s, "[", "]", pos) end
|
||
|
||
-- Scan forward from position `start` until we find a specific single byte `target`,
|
||
-- transparently stepping over balanced parens/braces/brackets.
|
||
-- Returns the position of `target`, or nil if not found.
|
||
function M.scan_to_char(s, target, start)
|
||
local target_byte = target:byte()
|
||
local pos = start
|
||
while pos <= #s do
|
||
local c = s:byte(pos)
|
||
if c == target_byte then return pos end
|
||
-- scan: ... <target found> | <skipping to target>
|
||
if c == BYTE_OPEN_PAREN then local _, a = M.read_balanced(s, "(", ")", pos); pos = a
|
||
-- scan: ... ( <balanced> ) ...
|
||
elseif c == BYTE_OPEN_BRACE then local _, a = M.read_balanced(s, "{", "}", pos); pos = a
|
||
-- scan: ... { <balanced> } ...
|
||
elseif c == BYTE_OPEN_BRACK then local _, a = M.read_balanced(s, "[", "]", pos); pos = a
|
||
-- scan: ... [ <balanced> ] ...
|
||
else
|
||
local nx = M.skip_str_or_cmt(s, pos)
|
||
pos = (nx > pos) and nx or (pos + 1)
|
||
-- scan: ... <str|cmt skipped> ...
|
||
end
|
||
end
|
||
return nil
|
||
end
|
||
|
||
-- If `s[pos]` is `#`, skip to the end of the preprocessor directive line (past the newline).
|
||
-- Returns the position past the newline, or nil if `s[pos]` is not `#`.
|
||
-- scan: #<directive>\n -> past the newline
|
||
function M.skip_preprocessor_line(s, pos)
|
||
if s:byte(pos) ~= 35 then return nil end -- '#'
|
||
local scan = pos
|
||
local len = #s
|
||
while scan <= len and s:byte(scan) ~= BYTE_NEWLINE do
|
||
scan = scan + 1
|
||
end
|
||
return scan + 1
|
||
end
|
||
|
||
-- Split a brace-body into top-level comma-separated tokens. Honors nested
|
||
-- parens/braces/brackets and skips strings/comments.
|
||
--
|
||
-- FIX (2026-07-09): split at top-level NEWLINES and SEMICOLONS too, AND emit a token break after a top-level comment/string.
|
||
-- Previous behavior glued the macro call after a comment into the same token, so `word_count_of_token` only saw the
|
||
-- leading ident (often nil after stripping the comment), undercounting the body. See Phase 1 of the branch-offset regression investigation.
|
||
-- Pure-comment / pure-string chunks (which now appear between real statements) are filtered out so they contribute 0 words instead of 1.
|
||
function M.split_top_level_commas(body)
|
||
local tokens = {}
|
||
local pos = 1
|
||
local body_len = #body
|
||
local token_start = 1
|
||
|
||
-- True iff `chunk` contains any non-whitespace, non-comment, non-string content
|
||
-- (i.e., real token material). Walks through ws + comments individually so a chunk like " /* trailing */ shift_lleft(...)"
|
||
-- is correctly classified as having real content (the macro call).
|
||
local function has_real_content(chunk)
|
||
local scan = 1
|
||
local len = #chunk
|
||
while scan <= len do
|
||
if M.is_space(chunk:sub(scan, scan)) then
|
||
scan = scan + 1
|
||
else
|
||
local nx = M.skip_str_or_cmt(chunk, scan)
|
||
if nx > scan then
|
||
scan = nx -- skipped a comment or string
|
||
else
|
||
return true -- found real content
|
||
end
|
||
end
|
||
end
|
||
return false
|
||
end
|
||
|
||
local function emit(end_pos)
|
||
if end_pos >= token_start then
|
||
local chunk = body:sub(token_start, end_pos)
|
||
if M.trim(chunk) ~= "" then
|
||
if has_real_content(chunk) then
|
||
tokens[#tokens + 1] = chunk
|
||
elseif #tokens > 0 then
|
||
-- Pure comment/string chunk at top level (no preceding instruction content within this chunk).
|
||
-- APPEND it to the LAST token so emit-context callers (components.lua build_component_lines)
|
||
-- can convert `// trailing comment` to `/* */` and emit it with the macro body.
|
||
-- For word counting, count_token_words only inspects the leading ident, so a trailing comment doesn't affect the count.
|
||
--
|
||
-- This is the second-half fix to commit 98e27c2: the first fix correctly broke top-level comments
|
||
-- off from the NEXT statement (fixing macro-call word counts);
|
||
-- This fix preserves them on the PREVIOUS statement (restoring the comments in the emitted .macs.h output).
|
||
tokens[#tokens] = tokens[#tokens] .. chunk
|
||
end
|
||
end
|
||
token_start = end_pos + 1
|
||
end
|
||
end
|
||
|
||
while pos <= body_len do
|
||
local c = body:byte(pos)
|
||
if c == BYTE_OPEN_PAREN then local _, a = M.read_parens(body, pos); pos = a -- scan: ... ( <balanced> ...
|
||
elseif c == BYTE_OPEN_BRACE then local _, a = M.read_braces(body, pos); pos = a -- scan: ... { <balanced> ...
|
||
elseif c == BYTE_OPEN_BRACK then local _, a = M.read_brackets(body, pos); pos = a -- scan: ... ( <balanced> ...
|
||
elseif c == BYTE_COMMA then
|
||
-- scan: ... <token> , <next> ...
|
||
emit(pos - 1)
|
||
pos = pos + 1
|
||
token_start = pos
|
||
elseif c == BYTE_SEMI then
|
||
-- scan: ... <token> ; <next> ...
|
||
emit(pos - 1)
|
||
pos = pos + 1
|
||
token_start = pos
|
||
elseif c == BYTE_NEWLINE then
|
||
-- scan: ... <token> \n <next> ...
|
||
emit(pos - 1)
|
||
pos = pos + 1
|
||
token_start = pos
|
||
else
|
||
local nx = M.skip_str_or_cmt(body, pos)
|
||
if nx > pos then
|
||
-- scan: ... <str|cmt> ...
|
||
-- Skipped a comment or string at top level: emit token break.
|
||
pos = nx
|
||
emit(pos - 1)
|
||
else
|
||
pos = pos + 1
|
||
end
|
||
end
|
||
end
|
||
-- scan: <token> , <token> , ... <token>
|
||
emit(body_len)
|
||
return tokens
|
||
end
|
||
|
||
-- ════════════════════════════════════════════════════════════════════════════
|
||
-- Section 5: load_word_counts
|
||
-- ════════════════════════════════════════════════════════════════════════════
|
||
|
||
function M.load_word_counts(metadata_path)
|
||
local counts = {}
|
||
local content = M.read_file(metadata_path)
|
||
local len = #content
|
||
local pos = 1
|
||
local prefix = "WORD_COUNT("
|
||
while pos <= len do
|
||
local nl = M.find_byte(content, BYTE_NEWLINE, pos)
|
||
local line_end = nl or (len + 1)
|
||
local line = content:sub(pos, line_end - 1)
|
||
-- scan: WORD_COUNT(<name>, <N>)
|
||
local trimmed = M.trim(line)
|
||
if trimmed:sub(1, #prefix) == prefix and trimmed:sub(-1) == ")" then
|
||
local inner = trimmed:sub(#prefix + 1, #trimmed - 1)
|
||
local comma = M.find_byte(inner, BYTE_COMMA, 1)
|
||
if comma then
|
||
counts[M.trim(inner:sub(1, comma - 1))] =
|
||
tonumber(M.trim(inner:sub(comma + 1)))
|
||
end
|
||
end
|
||
pos = line_end + 1
|
||
end
|
||
return counts
|
||
end
|
||
|
||
|
||
-- ════════════════════════════════════════════════════════════════════════════
|
||
-- ══════════════════════════════════════════════════
|
||
-- Section 6: LineIndex (perf fix — replaces the per-call rescan line_of)
|
||
-- ══════════════════════════════════════════════════
|
||
|
||
function M.LineIndex(source)
|
||
local positions = {}
|
||
local n = 0
|
||
for pos = 1, #source do
|
||
if source:byte(pos) == BYTE_NEWLINE then
|
||
n = n + 1
|
||
positions[n] = pos
|
||
end
|
||
end
|
||
-- (internal) Binary-search for the line number containing query_pos.
|
||
local function line_of(query_pos)
|
||
local lo, hi = 1, n
|
||
while lo <= hi do
|
||
local mid = math.floor((lo + hi) / 2)
|
||
if positions[mid] <= query_pos then lo = mid + 1
|
||
else hi = mid - 1 end
|
||
end
|
||
return hi + 1
|
||
end
|
||
return line_of
|
||
end
|
||
|
||
-- Section 7: domain tables
|
||
-- ════════════════════════════════════════════════════════════════════════════
|
||
|
||
M.WAVE_CONTEXT_REGS = {
|
||
["R_PrimCursor"] = { alias = "R_T7", size = 4, role = "output cursor (prim arena)" },
|
||
["R_FaceCursor"] = { alias = "R_T4", size = 4, role = "input cursor (face array)" },
|
||
["R_VertBase"] = { alias = "R_T5", size = 4, role = "base pointer (vertex array)" },
|
||
["R_OtBase"] = { alias = "R_T6", size = 4, role = "base pointer (ordering table)" },
|
||
}
|
||
|
||
-- The annotation DSL has been reduced to a single annotation macro:
|
||
-- atom_info(atom_bind(Binds_X), atom_reads(...), atom_writes(...))
|
||
-- All phase / region / cadence / async / resource / group tokens have
|
||
-- been dropped. They may be reintroduced later as optional sub-calls
|
||
-- of atom_info; for now, the parser only recognizes atom_info + its
|
||
-- three sub-calls (atom_bind, atom_reads, atom_writes).
|
||
M.TAPE_ATOM_MACROS = {
|
||
["atom_info"] = { kind = "info", binds = false },
|
||
}
|
||
|
||
-- GTE pipeline-fill latency table.
|
||
--
|
||
-- For each `gte_cmdw_*` macro in code/duffle/gte.h, the minimum number of consecutive COP2 "nop" words that MUST appear
|
||
-- before the command issues so that any preceding `lwc2`/`swc2`/C2 state writes have retired before the GTE starts
|
||
-- reading its input registers.
|
||
--
|
||
-- The check (`scripts/passes/static_analysis.lua :: check_gte_pipeline_fill`) walks each atom body,
|
||
-- counts the consecutive nop words before every `gte_cmdw_*` invocation, and reports a finding if the count is below this minimum.
|
||
--
|
||
-- PRE-FILL vs POST-FILL: this table models PRE-cmdw nops (retiring preceding C2 writes), NOT the post-cmdw input-latch
|
||
-- window. The PSX-SPX pipeline timings doc (`docs/psx-spx/docs/gtepipelinetimings.md`) measures a DIFFERENT number:
|
||
-- the smallest N nops between `cop2` and `mtc2` to a specific input register at which the write no longer affects
|
||
-- the output. For nearly all instructions, inputs latch in the first 0-4 cycles — the GTE snapshots its input
|
||
-- register file early and works from internal pipeline storage afterward. The documented total cycle count is
|
||
-- NOT the "do not touch inputs" window; the actual read window is much shorter.
|
||
--
|
||
-- The `gte_rtpt()` / `gte_nclip()` wrapper macros in gte.h emit the pre-cmd nops internally (asm_words(nop, nop, ...)),
|
||
-- but THOSE WRAPPERS ARE NOT USED INSIDE ATOM BODIES in this codebase.
|
||
-- Every MipsAtom_(name) body uses raw `nop2, gte_cmdw_<X>, ...` form instead — that `nop2,` is the pre-fill this check validates.
|
||
-- So values here reflect the source-level convention, NOT the wrapper-internal pre-fill.
|
||
--
|
||
-- Cycle counts from PSX-SPX `docs/psx-spx/docs/geometrytransformationenginegte.md`:
|
||
-- cmd PSX-SPX cycles min pre-nops rationale
|
||
-- rtps 15 2 8c per perspective divide + 6c for IR1..4 + mac write
|
||
-- rtpt 23 2 3x rtps worth of pipeline depth (per-vertex pipeline fill)
|
||
-- nclip 8 2 MAC0 write + 5c for sign computation
|
||
-- avsz3 5 2 5c to compute average + write OTZ (all inputs latch at N=0)
|
||
-- avsz4 6 2 avsz3 + 1c extra for 4th vertex
|
||
-- mvmva 8 2 IR1..4 write + matrix work (8c regardless of mx/v/cv selection)
|
||
-- op 6 0 cross product; output to IR1..3 only (atomic 6c calc, no pre-fill needed)
|
||
--
|
||
-- The pre-nop values (2 for most commands) are conservative: PSX-SPX pipeline timings show most inputs latch at N=0-1
|
||
-- relative to a preceding mtc2, but 2 nops is the gte.h convention for retiring preceding lwc2/swc2 + C2 state.
|
||
-- OP is set to 0 because it's a short atomic op with no input that needs a long retire window.
|
||
--
|
||
-- Aliases are listed separately because source code may use either the alias or the canonical name.
|
||
M.GTE_PIPELINE_LATENCY = {
|
||
-- Minimum number of consecutive `nop` words that must appear IMMEDIATELY BEFORE a `gte_cmdw_<X>` invocation
|
||
-- to retire any preceding `lwc2` / `swc2` / pre-existing C2 state writes before the GTE pipeline starts reading
|
||
-- from V0/V1/V2 or MAC0..3 / OTZ / IR0..3 at the command's issue cycle.
|
||
--
|
||
-- Values are from the doxygen comments in code/duffle/gte.h and cross-checked against
|
||
-- PSX-SPX `docs/psx-spx/docs/geometrytransformationenginegte.md` (cycle counts) and
|
||
-- `docs/psx-spx/docs/gtepipelinetimings.md` (input-latch boundaries).
|
||
|
||
-- Canonical macros (from code/duffle/gte.h)
|
||
["gte_cmdw_rtps"] = 2, -- RTPS: 15 cycles (PSX-SPX)
|
||
["gte_cmdw_rtpt"] = 2, -- RTPT: 23 cycles (PSX-SPX)
|
||
["gte_cmdw_nclip"] = 2, -- NCLIP: 8 cycles (PSX-SPX)
|
||
["gte_cmdw_op"] = 0, -- OP: 6 cycles, atomic (PSX-SPX)
|
||
["gte_cmdw_mvmva"] = 2, -- MVMVA: 8 cycles (PSX-SPX)
|
||
["gte_cmdw_avsz3"] = 2, -- AVSZ3: 5 cycles (PSX-SPX)
|
||
["gte_cmdw_avsz4"] = 2, -- AVSZ4: 6 cycles (PSX-SPX)
|
||
|
||
-- Aliases (must have the same value as their canonical target)
|
||
["gte_cmdw_rotate_translate_perspective_single"] = 2,
|
||
["gte_cmdw_rotate_translate_perspective_triple"] = 2,
|
||
["gte_cmdw_avg_sort_z4"] = 2,
|
||
|
||
-- Outer product aliases (same canonical op, 0 pre-fill nops).
|
||
-- gte_cmdw_op = canonical GTE-internal short form
|
||
-- gte_cmdw_outer_product = NOCASH / SDK-readable form
|
||
-- gte_cmdw_wedge = geometric-algebra (exterior-product) form
|
||
["gte_cmdw_outer_product"] = 0,
|
||
["gte_cmdw_wedge"] = 0,
|
||
}
|
||
|
||
-- GP0 packet sizes (total words including the 1-word tag) per GP0 cmd byte.
|
||
-- Per PSX-SPX `docs/psx-spx/docs/graphicsprocessingunitgpu.md` §"GPU Render Polygon Commands":
|
||
-- Each polygon command's word count = 1 (tag/cmd) + per-vertex (vertex + optional color + optional UV).
|
||
-- F3: cmd + 3 vertices = 4 words; +1 tag = 5
|
||
-- F4: cmd + 4 vertices = 5 words; +1 tag = 6
|
||
-- G3: cmd + 3×(color + vertex) = 6 words; +1 tag = 7
|
||
-- G4: cmd + 4×(color + vertex) = 8 words; +1 tag = 9
|
||
-- FT3: cmd + tpage + clut + 3×(vertex + UV) = 7 words; +1 tag = 8
|
||
-- FT4: cmd + tpage + clut + 4×(vertex + UV) = 9 words; +1 tag = 10
|
||
-- GT3: cmd + tpage + clut + 3×(color + vertex + UV) = 9 words; +1 tag = 10
|
||
-- GT4: cmd + tpage + clut + 4×(color + vertex + UV) = 12 words; +1 tag = 13
|
||
--
|
||
-- Cross-checked against code/duffle/gp.h struct sizes + the set_poly_* macros
|
||
-- (which encode "len" = "words after tag"):
|
||
-- set_poly_f3(p) -> set_len(p, 4) -> 5 total GP0 0x20
|
||
-- set_poly_ft3(p) -> set_len(p, 7) -> 8 total GP0 0x24
|
||
-- set_poly_f4(p) -> set_len(p, 5) -> 6 total GP0 0x28
|
||
-- set_poly_ft4(p) -> set_len(p, 9) -> 10 total GP0 0x2C
|
||
-- set_poly_g3(p) -> set_len(p, 6) -> 7 total GP0 0x30
|
||
-- set_poly_gt3(p) -> set_len(p, 9) -> 10 total GP0 0x34
|
||
-- set_poly_g4(p) -> set_len(p, 8) -> 9 total GP0 0x38
|
||
-- set_poly_gt4(p) -> set_len(p, 12) -> 13 total GP0 0x3C
|
||
M.GP0_CMD_SIZE = {
|
||
[0x20] = 5, -- Poly_F3
|
||
[0x24] = 8, -- Poly_FT3
|
||
[0x28] = 6, -- Poly_F4
|
||
[0x2C] = 10, -- Poly_FT4
|
||
[0x30] = 7, -- Poly_G3
|
||
[0x34] = 10, -- Poly_GT3
|
||
[0x38] = 9, -- Poly_G4
|
||
[0x3C] = 13, -- Poly_GT4
|
||
}
|
||
|
||
-- Shape suffix (after `ac_format_` / `mac_format_` prefix) -> GP0 cmd byte.
|
||
-- Lets the static-analysis check derive the cmd byte from a macro name like `mac_format_g4_color` -> `g4` -> 0x38 -> 9 expected words.
|
||
M.GP0_CMD_BY_SHAPE = {
|
||
["f3"] = 0x20, ["ft3"] = 0x24,
|
||
["f4"] = 0x28, ["ft4"] = 0x2C,
|
||
["g3"] = 0x30, ["gt3"] = 0x34,
|
||
["g4"] = 0x38, ["gt4"] = 0x3C,
|
||
}
|
||
|
||
-- Per-macro prim-buffer contribution
|
||
-- (NOT .text instruction count this is "how many 32-bit words does this macro write to the primitive being built in main RAM").
|
||
-- Sum across `mac_format_X_color` + `mac_gte_store_X_post_*` + `mac_insert_ot_tag_X` calls in an atom body must equal GP0_CMD_SIZE[GP0_CMD_BY_SHAPE[shape]].
|
||
M.GP0_MACRO_CONTRIB = {
|
||
["mac_format_f3_color"] = 1,
|
||
["mac_format_g3_color"] = 3,
|
||
["mac_format_g4_color"] = 4,
|
||
["mac_gte_store_f3_post_rtpt"] = 3,
|
||
["mac_gte_store_g3_post_rtpt"] = 3,
|
||
["mac_gte_store_g4_p012_post_rtpt_pre_rtps"] = 3,
|
||
["mac_gte_store_g4_p3_post_rtps"] = 1,
|
||
["mac_insert_ot_tag_f3"] = 1,
|
||
["mac_insert_ot_tag_g4"] = 1,
|
||
}
|
||
|
||
-- Per-macro cycle cost (best-case, no stalls). Used by the static-analysis pass to emit per-atom cycle budgets.
|
||
-- The counts cover the EXPANDED instruction sequence the macro emits (NOT just the token it appears as in source).
|
||
-- For example:
|
||
-- mac_pack_color_word(off, cmd, r, g, b) emits:
|
||
-- load_upper_i(R_AT, (cmd << 8) | b) -- 1 cycle
|
||
-- or_i_self(R_AT, (g << 8) | r) -- 1 cycle
|
||
-- store_word(R_AT, R_PrimCursor, off) -- 1 cycle
|
||
-- = 3 cycles total
|
||
--
|
||
-- mac_yield emits a control-transfer sequence (load_word, add_ui_self, jump_reg, nop)
|
||
-- which "yields control" the atom body's cycle budget doesn't include the yield's cost (we model it as 0;
|
||
-- runtime cost becomes part of the NEXT atom's prologue).
|
||
--
|
||
-- GTE command values are the GTE instruction's intrinsic cycles (the latency AFTER any pre-cmd `nop2` has retired).
|
||
-- When the source emits `nop2, gte_cmdw_X` the nops' cycles are added separately (1+1) plus the gte_cmdw_X value here:
|
||
-- rtpt = 23 + 2 nops = 25 total cycles (PSX-SPX says 23 cycles for the cmd itself; the nops are pre-fill)
|
||
-- rtps = 15 + 2 nops = 17 total
|
||
-- nclip = 8 + 2 nops = 10 total
|
||
-- avsz3 = 5 + 2 nops = 7 total
|
||
-- avsz4 = 6 + 2 nops = 8 total
|
||
-- mvmva = 8 + 2 nops = 10 total
|
||
-- op = 6 (no pre-cmd nops required; atomic)
|
||
--
|
||
-- Note: the "total" above is the pre-fill nops + the GTE intrinsic cycles. PSX-SPX documents the GTE
|
||
-- intrinsic cycles as the total execution time of the command itself (rtpt=23, rtps=15, nclip=8, etc.).
|
||
-- The pre-fill nops are a codebase convention for retiring preceding C2 writes, not part of the GTE's
|
||
-- own execution time. See `docs/psx-spx/docs/geometrytransformationenginegte.md` for the canonical
|
||
-- per-command cycle counts and `docs/psx-spx/docs/gtepipelinetimings.md` for the hardware-verified
|
||
-- input-latch boundaries (which show most inputs are safe to clobber after just 0-4 cycles).
|
||
M.INSTRUCTION_LATENCY = {
|
||
-- CPU ALU (single-cycle R3000A ops)
|
||
["nop"] = 1,
|
||
["nop2"] = 2,
|
||
["add_ui"] = 1, ["add_ui_self"] = 1,
|
||
["add_s"] = 1, ["add_si"] = 1,
|
||
["add_u"] = 1, ["add_u_self"] = 1,
|
||
["sub_u"] = 1, ["sub_s"] = 1,
|
||
["and_i"] = 1, ["and_u"] = 1,
|
||
["or_i"] = 1, ["or_i_self"] = 1,
|
||
["or_u"] = 1, ["or_u_self"] = 1,
|
||
["xor_i"] = 1, ["xor_u"] = 1,
|
||
["nor_u"] = 1,
|
||
["shift_lleft"] = 1, ["shift_lleft_self"] = 1,
|
||
["shift_lright"] = 1,
|
||
["shift_aright"] = 1,
|
||
["mask_upper"] = 1,
|
||
["mov_from_high"] = 2, -- mfhi: 2 cycles
|
||
["mov_from_low"] = 2, -- mflo: 2 cycles
|
||
["mov_to_high"] = 1, -- mthi: 1 cycle
|
||
["mov_to_low"] = 1, -- mtlo: 1 cycle
|
||
-- Set-on-condition (SLT family)
|
||
["set_lt_u"] = 1, ["set_lt_ui"] = 1,
|
||
["set_lt_s"] = 1, ["set_lt_si"] = 1,
|
||
-- Multiply / divide (no hardware multiplier; software via inline asm)
|
||
["mult_u"] = 12, ["mult_s"] = 12,
|
||
["div_u"] = 35, ["div_s"] = 35,
|
||
-- Loads (1 cycle + load-delay slot; the delay is typically absorbed by
|
||
-- the next instruction in a well-pipelined sequence, so we count 1)
|
||
["load_word"] = 1,
|
||
["load_half_u"] = 1, ["load_half"] = 1,
|
||
["load_byte_u"] = 1, ["load_byte"] = 1,
|
||
["load_upper_i"] = 1,
|
||
-- 2-word loads (lui + ori) used for >16-bit immediates
|
||
["load_imm"] = 2,
|
||
["load_imm_1w"] = 1,
|
||
["load_imm_1w_s0"] = 1,
|
||
["load_imm_2w"] = 2,
|
||
["load_imm_2w_addi_forced"] = 2,
|
||
["load_imm_2w_ori_forced"] = 2,
|
||
-- Stores (1 cycle each)
|
||
["store_word"] = 1,
|
||
["store_half"] = 1,
|
||
["store_byte"] = 1,
|
||
-- Branches (branch + BD slot nop = 2 cycles; the BD slot's nop is
|
||
-- counted as part of the branch's cost)
|
||
["branch_equal"] = 2, ["branch_ne"] = 2,
|
||
["branch_le_zero"] = 2, ["branch_lt_zero"] = 2,
|
||
["branch_ge_zero"] = 2, ["branch_gt_zero"] = 2,
|
||
-- Jumps (jump + BD slot nop = 2 cycles)
|
||
["jump"] = 2, ["jump_reg"] = 2,
|
||
["jump_link"] = 2, ["call_reg"] = 2,
|
||
["call_addr"] = 2,
|
||
-- COP2 transfers (mtc2/mfc2/ctc2/cfc2 = 1 cycle + COP2 latency; the
|
||
-- COP2 latency is usually absorbed by subsequent nops or by the next
|
||
-- GTE command's pre-fill nops, so we count 1)
|
||
["gte_mv_to_data_r"] = 1,
|
||
["gte_mv_from_data_r"] = 1,
|
||
["gte_mv_to_ctrl_r"] = 1,
|
||
["gte_mv_from_ctrl_r"] = 1,
|
||
["gte_lw"] = 1, ["gte_lwc2"] = 1,
|
||
["gte_sw"] = 1, ["gte_swc2"] = 1,
|
||
-- COP2 commands (intrinsic cycles per PSX-SPX, EXCLUDING the 2 pre-cmd nops that
|
||
-- the source typically emits as `nop2, gte_cmdw_X`; those nops are counted
|
||
-- separately via the `nop2` entry above)
|
||
["gte_cmdw_rtpt"] = 23, -- RTPT: 23 cycles (PSX-SPX)
|
||
["gte_cmdw_rtps"] = 15, -- RTPS: 15 cycles (PSX-SPX)
|
||
["gte_cmdw_nclip"] = 8, -- NCLIP: 8 cycles (PSX-SPX)
|
||
["gte_cmdw_avsz3"] = 5, -- AVSZ3: 5 cycles (PSX-SPX)
|
||
["gte_cmdw_avsz4"] = 6, -- AVSZ4: 6 cycles (PSX-SPX)
|
||
["gte_cmdw_mvmva"] = 8, -- MVMVA: 8 cycles (PSX-SPX)
|
||
["gte_cmdw_op"] = 6, -- OP: 6 cycles (PSX-SPX)
|
||
["gte_cmdw_outer_product"] = 6, -- alias for OP
|
||
["gte_cmdw_wedge"] = 6, -- alias for OP
|
||
-- Long-form aliases (same cost as canonical)
|
||
["gte_cmdw_rotate_translate_perspective_single"] = 15, -- alias for rtps
|
||
["gte_cmdw_rotate_translate_perspective_triple"] = 23, -- alias for rtpt
|
||
["gte_cmdw_avg_sort_z4"] = 6, -- alias for avsz4
|
||
-- Non-cmdw aliases from gte.h (these are `#define gte_X gte_cmdw_Y`):
|
||
["gte_avg_sort_z3"] = 5, -- alias for avsz3
|
||
["gte_avg_sort_z4"] = 6, -- alias for avsz4
|
||
["gte_rtps"] = 15, -- alias for rtps
|
||
["gte_rtpt"] = 23, -- alias for rtpt
|
||
["gte_nclip"] = 8, -- alias for nclip
|
||
["gte_avsz3"] = 5,
|
||
["gte_avsz4"] = 6,
|
||
-- Legacy single-cycle store helpers (gte_stotz, gte_stsxy3 are 1 cycle)
|
||
["gte_stotz"] = 1,
|
||
["gte_stsxy3"] = 1,
|
||
-- High-level GTE helpers (gte_load_v0/v1/v2 do multiple lwc2s)
|
||
["gte_load_v0"] = 2, -- 1 lwc2 for VXY0 + 1 for VZ0
|
||
["gte_load_v1"] = 2,
|
||
["gte_load_v2"] = 2,
|
||
["gte_load_v0v1v2"] = 6,
|
||
-- mac_* helpers (cycle cost = sum of the expanded instructions)
|
||
-- mac_yield transfers control; cycle budget is 0 (the next atom
|
||
-- absorbs the cost).
|
||
["mac_yield"] = 0,
|
||
["mac_pack_color_word"] = 3, -- lui + ori + sw
|
||
["mac_format_f3_color"] = 3, -- = mac_pack_color_word
|
||
["mac_format_g4_color"] = 12, -- 4 x mac_pack_color_word
|
||
["mac_load_tri_indices"] = 3, -- 3 x lhu
|
||
["mac_gte_load_tri_verts"] = 18, -- 3 x {sll, addu, lw, lw, mtc2, mtc2}
|
||
["mac_gte_store_f3_post_rtpt"] = 3,
|
||
["mac_gte_store_g3_post_rtpt"] = 3,
|
||
["mac_gte_store_g4_p012_post_rtpt_pre_rtps"] = 3,
|
||
["mac_gte_store_g4_p3_post_rtps"] = 1,
|
||
["mac_insert_ot_tag_f3"] = 11, -- 11 .word slots in the macro body
|
||
["mac_insert_ot_tag_g4"] = 11,
|
||
-- Annotation markers (emit no code; pure metaprogram hints)
|
||
["atom_label"] = 0,
|
||
["atom_offset"] = 0,
|
||
["atom_info"] = 0,
|
||
["atom_bind"] = 0,
|
||
["atom_reads"] = 0,
|
||
["atom_writes"] = 0,
|
||
}
|
||
|
||
-- Default cycle cost for unknown macros.
|
||
-- The static-analysis pass adds 1 cycle per unknown token and emits a "new macro; update INSTRUCTION_LATENCY"
|
||
-- advisory so the cycle budget stays accurate as the codebase grows.
|
||
M.UNKNOWN_INSTRUCTION_CYCLES = 1
|
||
|
||
return M
|